Machine for carroting hides.



No. 846,944. PATENTED MAR. 12,1907. 0. 4 E. PIGHARD.

MACHINE FOR GARROTING HIDES. APPLICATION FILED MAY 8. 1906.

CHARLES PICHARD AND EMILE PICI-IARD, OF PARIS, FRANCE.

MACHINE FOR CARROTING HIDES.

Specification of Letters Patent.

Patented March 12, 1907.

Application filed May 8, 1906. Serial No. 315,745.

. with nitrate of mercury or other product for the purpose of carroting or with dyeing material for the purpose of dyeing.

This invention relates to the application of vaporization to the dyeing and carroting of hides, which application can be effected by means of the machine illustrated by way of example in the accompanying drawing.

For the sake of clearness this machine will 'be described as applied to the carroting of hides; but it must be understood that the same machine can also be used for dyeing.

The machine comprises a tank a, containing nitrate of mercury or other liquid to be injected into the hides. The liquid is brought into a chamber 6 by a conduit 0, the end of which adjoins that of a pipe (1, which supplies air under pressure. The chamber 1) is provided with a suction-chimney e and inside with a grating The hides arranged at g are pushed by hand until seized by rolls h h, which pass them into the chamber 6 over the grid f, other rolls t i seizing them (before they have been released by the preceding rolls) to pass them out of the chamber. The hides pass through the chamber b in a straight line, and the pipe at is arranged at an acuteangle to the grid and the path of-the hides in order to raise the hair by the action of the compressed air issuing from said pipe, such air at the same time vaporizing the liquid supplied throu h the pipe 0. Inits passage t rough the c amber each hide prefer ably goes tail first, and the pipe d is preferably arranged to deliver the vapor in the direction indicated by the dotted lines, whereby the hairs are raised and completely exposed, with their roots, to the action of the vapor. from h to 'i the hide and the hair are submitted to theaction of a finely-divided jet of Thus during the travel of the hideliquid. The liquid is forced to a more or less depth into the hair by using more or less airpressure. To that end the compressed-air pipe 61 may be provided with a regulatingcock. (Not shown.) Any excess of liquid passes through the grate f and is discharged by an inclined plane j into the groove or pocket 7c. Injurious fumes which otherwise would escape through the parts of the machines communicating with the chamber 1) into the atmosphere are drawn away through the suction-chimney e.

During the carroting o eration, as certain of the products injecte are corrosive, the chamber 1) is preferably closed in a completely air-tight manner, and the top of the said chamber may be rovided with a window with a movable g ass I, so as to enable the work to be watched. On leaving the chamber 1) the hides pass over a cylinder m, and while so doing the hair is brushed by a circular brush n, rotating in the opposite direction to the roll. After having followed the path shown in the drawing by the dotted line 0 the hides leave the machine.

The same machine can be used for dyeing the hides, either complete hides or only'the hair to a certain height. In that case the tank a receives ,the coloring material used for dyeing. In some cases it is necessary to treat hair separated from the hide,or pieces, waste, or shavings of hides. The machine described may be adapted for such work by providing a feeding device which pushes the hair or waste of hides onto a rotating wheel or other suitable member in the interior of the chamber 1), which divides the mass, so as to submit it under the best conditions to the action of the jet of liquid. The hair or waste can also be simply brought under the jet of the machine by means of an endless band on which they are spread by hand, the said band starting from a roll secured to the plate g. Finally the machine hereinbefore described by way of example of a practical application of the invention can be modified invarious ways for improving the execution of the work and increasing the output.

Having thus described our invention, we claim Ina machine for carroting hides, in combination, a chamber, feed-rollers at the front and rear ends of said chamber and cooperative to feed the hide across said chamber in a specification in the presence of two SIibSCIib-" 7 straight line, a grid supported within said ing witnesses.

chamber and over which the hide asses, and i I means within the upper'part of said chamber 5 to direct a jet of vapor zed carroting liquid downwardly toward said grid at an acute an- Witnesses:

gle to the same. EMILE LEDRET, In testimony whereof we have signed this HERNANDO DE SOTO. 

